A novel approach for accurate SOC estimation in Li-ion batteries in view of temperature variations
Lithium-ion (Li-ion) batteries are extensively utilized in electric vehicles and solar energy storage systems owing to their remarkable energy and power density, capacity, and performance The main problems faced in these systems are the errors that occurred in estimating the battery's state of...
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Elsevier
2025-03-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025000507 |
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| author | Abdelhakim Tabine El Mehdi Laadissi Hicham Mastouri Anass Elachhab Sohaib Bouzaid Abdelowahed Hajjaji |
| author_facet | Abdelhakim Tabine El Mehdi Laadissi Hicham Mastouri Anass Elachhab Sohaib Bouzaid Abdelowahed Hajjaji |
| author_sort | Abdelhakim Tabine |
| collection | DOAJ |
| description | Lithium-ion (Li-ion) batteries are extensively utilized in electric vehicles and solar energy storage systems owing to their remarkable energy and power density, capacity, and performance The main problems faced in these systems are the errors that occurred in estimating the battery's state of charge (SOC). For that reason, the current study introduces a novel approach based on a fitting polynomial algorithm for state of charge (FPSOC) estimation. The proposed FPSOC method enhances the accuracy and efficiency of SOC estimation by mitigating temperature-induced inaccuracies. Unlike other methods, this technique eliminates the need for a thermal model, offering a solution to rectify temperature-related errors and overcome limitations found in existing battery SOC estimation methods. Through the utilization of this approach, these challenges can be effectively addressed. Simulation results utilizing the MATLAB/Simulink tool demonstrate that the proposed FPSOC method achieves highly precise SOC determination with significantly lower RMSE errors of 0.72 and 0.84, compared to 7.98 and 7.81 for the CC method, respectively, under real and simulated temperature profiles (from -20 °C to 80 °C). Contrasting with established techniques such as TBCC-APF, TBCC-AEKF, APF, AEKF, HMM, TBCC, Multi-Time, Scale DEKF, FF-LSTM, EKF-CCD, EKF-FUDS, OCV-SOC, and ASVDUKF, the proposed FPSOC method showcases exceptional performance, yielding a remarkably low average error of 0.72 in battery SOC estimation. This demonstrates its reliability and accuracy, positioning it as a highly promising algorithm for battery management systems (BMS). |
| format | Article |
| id | doaj-art-a990ea528b3d4bc0affaa84caa3db41a |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-a990ea528b3d4bc0affaa84caa3db41a2025-01-26T05:04:46ZengElsevierResults in Engineering2590-12302025-03-0125103962A novel approach for accurate SOC estimation in Li-ion batteries in view of temperature variationsAbdelhakim Tabine0El Mehdi Laadissi1Hicham Mastouri2Anass Elachhab3Sohaib Bouzaid4Abdelowahed Hajjaji5LabSIPE, National School of Applied Sciences, Chouaib Doukkali university, El Jadida, Morocco; Corresponding author.LabSIPE, National School of Applied Sciences, Chouaib Doukkali university, El Jadida, Morocco; University Mohammed VI Polytechnic (UM6P) Benguerir, MoroccoUniversity Mohammed VI Polytechnic (UM6P) Benguerir, MoroccoLabSIPE, National School of Applied Sciences, Chouaib Doukkali university, El Jadida, MoroccoLabSIPE, National School of Applied Sciences, Chouaib Doukkali university, El Jadida, MoroccoLabSIPE, National School of Applied Sciences, Chouaib Doukkali university, El Jadida, MoroccoLithium-ion (Li-ion) batteries are extensively utilized in electric vehicles and solar energy storage systems owing to their remarkable energy and power density, capacity, and performance The main problems faced in these systems are the errors that occurred in estimating the battery's state of charge (SOC). For that reason, the current study introduces a novel approach based on a fitting polynomial algorithm for state of charge (FPSOC) estimation. The proposed FPSOC method enhances the accuracy and efficiency of SOC estimation by mitigating temperature-induced inaccuracies. Unlike other methods, this technique eliminates the need for a thermal model, offering a solution to rectify temperature-related errors and overcome limitations found in existing battery SOC estimation methods. Through the utilization of this approach, these challenges can be effectively addressed. Simulation results utilizing the MATLAB/Simulink tool demonstrate that the proposed FPSOC method achieves highly precise SOC determination with significantly lower RMSE errors of 0.72 and 0.84, compared to 7.98 and 7.81 for the CC method, respectively, under real and simulated temperature profiles (from -20 °C to 80 °C). Contrasting with established techniques such as TBCC-APF, TBCC-AEKF, APF, AEKF, HMM, TBCC, Multi-Time, Scale DEKF, FF-LSTM, EKF-CCD, EKF-FUDS, OCV-SOC, and ASVDUKF, the proposed FPSOC method showcases exceptional performance, yielding a remarkably low average error of 0.72 in battery SOC estimation. This demonstrates its reliability and accuracy, positioning it as a highly promising algorithm for battery management systems (BMS).http://www.sciencedirect.com/science/article/pii/S2590123025000507Lithium-ion batterySOC estimationTemperature variationPolynomial fitting algorithmError analysisModule development |
| spellingShingle | Abdelhakim Tabine El Mehdi Laadissi Hicham Mastouri Anass Elachhab Sohaib Bouzaid Abdelowahed Hajjaji A novel approach for accurate SOC estimation in Li-ion batteries in view of temperature variations Results in Engineering Lithium-ion battery SOC estimation Temperature variation Polynomial fitting algorithm Error analysis Module development |
| title | A novel approach for accurate SOC estimation in Li-ion batteries in view of temperature variations |
| title_full | A novel approach for accurate SOC estimation in Li-ion batteries in view of temperature variations |
| title_fullStr | A novel approach for accurate SOC estimation in Li-ion batteries in view of temperature variations |
| title_full_unstemmed | A novel approach for accurate SOC estimation in Li-ion batteries in view of temperature variations |
| title_short | A novel approach for accurate SOC estimation in Li-ion batteries in view of temperature variations |
| title_sort | novel approach for accurate soc estimation in li ion batteries in view of temperature variations |
| topic | Lithium-ion battery SOC estimation Temperature variation Polynomial fitting algorithm Error analysis Module development |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025000507 |
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